And said loomis



@umn sans issuer @time JABIES A. LOOMIS ANDALONZO JOHNSON, SPRINGFIELD, MASSACIIUSE'I''lt` ASSIGNORS TO THEMSELVES AND CHARLES GIFEERD, OF GARDINER, MAINE, AND SAID LOOMIS AND JOHNSON ASSIGNORS TO CHARLES GIFFERD.

Letters .Patent No. 73,732, dated' January 28, 1868.

IMPROVEMENT IN GALGULATINGMAGBINES.

TO ALL WHOM IT MAY CONCERN:

Be it known thatwe, JAMES A. LOOMIS and ALONZO JOHNSON, of Springfield, in the county of Hampden, and State of Massachusetts, have invented a new and improved Calculating-Machine; and we do hereby declare that the following is a full, clear, and exact description thereof, which will enable those skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in whichl Figure I represents a. plan or top view of our improved calculating-machine.

Figure 2 is a vertical central section of the same, the plane of section being indicated bythe line x, lig. 1.

Figure 3 is a vertical sectional view of lthe same, the plane of section being indicated by the'liueyy, iigQl.

Similar letters of reference indicate corresponding parts.

This invention relates to a new device for adding numbers, and is particularly applicable for counting lumber, as itis provided with e. device forV registering the number of feet counted, as well as the number ofboards or pieces. I i

The invention consists'in the use of twov circular plates, which are placed one upon the other, around a stationary arbor, the upper plate being marked around its rim with the numbers from 1 to 100. The two plates are connected in such a manner that they turn together, except when one hundred is completed, when the lowerplate will romaine-stationary,-while the upper or dial-plate advances one ligure, thereby registering one' additional hundred, which is seen by referring'to a pin on the lower plate, and the opposite figure on the dial-plate.

'lhe units are counted by means of a pointer, which turns 'on the aforesaid arbor, and which fits into holes or notches in the dial-plate, carrying the same around as far as needed, when that figure on the dial-plate Iwhich is opposite to a stop on a stationary disk, upon which the two other plates revolve, will indicate the tens und units. pawl on the pointer moves n. small disk once during each move of the pointer, and thereby the .number of boards or pieces measured is registered.

A represents a circular plate, which is stationary, {ixed upon a handle, B, and from the centre of the face oi' which an arbor, C, projects. D is a circular plate, alittle smaller in diameter than the disk A, which is placed upon the face of the plato A, and around the arbor C. It is perforated with one hundredl holes, a a, which are arranged on a. circular line, at equal distances from each other. A pin, b, which is fixed to a spring,

. c, that is arranged on the under side of the disk A, dts through n hole in the latter into one of the holes o in D. Its upper end is bevelled, as shown in iig. 2, whereby the disk D is allowed Vto bc turned in one direction,

(arrow, iig. 1,) while it cannot be turned in the opposite. E is a disk, a little smaller in diameter than the disk 1), and set around the arbor C, and upon the disk D. It is perforated with one hundred holes, d l, which are arranged nearits circumference, at equal distances from each other, as is clearly shown in iignl. F is a spring, which is fitted around the arbor C so as to revolve around the same, and which has a pin, e, near its end, at its underside, said pin passing through a hole, in the. disk E, into one of tbe holes a in the disk D, u shown intig. 3:` Thus the disks D andE are connected, so as to 'revolve together in the direction of the arrow, shown in iigf. G is a small circular' plate, which is fitted above the spring F around the arbor C, and the arrangement of which will be hereinafter explained. It is provided with4 two pins, g g, at its under side, which tit into a 4shoulder in the arbor, whereby it is prevented from revolving around the said arbor. Above the plate G islittcd, around the arbor, a pointer or hand, H, which revolves on the arbor, and by c nut, M, which is screwed` upon the upper end of the arbor, the hand H, plate G, spring F, and disks D and E, are held down inthcir position on the said arbor. At thc end of the hand H, at its under side, is a pin, h, which its into one of the holes d d in the plate E. A knob or handle, t', is fixed near the end of the pointer H, and a pawhj, at its 'under side., v'lfhe'end of this pawl is forced by n spring, la, against the rim of the plato G. In this plate G is an annular recess, in which two or more annular plates, I and J, are fitted loosely,

. lo as to turn around the arbor C. The circumference of these plates, I and J, is notched, like that of ratchet wheels, und o portion of the rim of the plateG is cut out, so that the pawlj is or can be forced by the spring notches in thev plates I and J. Upon tlie faces of the plates A and E are 1110.11. d, near to their t 1 A er-iphe'ries, the Erst hundred gures. When the end of the pointer H stands over the figures 100, en A, the newly' strikes against u shoulder, I, ou the plate G, and prevent-s tho hand and the plates D and E from being turned further.

The operation is simple, and as follows: The pointer, standing at 100, on A, is moved in the direction opposite'to the arrow, to that figure inA. which it is desired to add. At that point it is connected with the plates D and E by the pin 7L, which is passed through that hoie, d, which stands opposite'to the desired gure on A. Then the pointer and thoplates D and E arercarried around untilthey stop at 100 in A, when the -figure on which is opposite to 100 in A'representsthe tensa-nd units of feet of lumber that have been 'E'. p is u spring-catch, by which the disksi and J are heldin position.

counted. The hundreds are marked by a pin, m, which is fixed to the plate D. The yedge ofthe plate D is hevelled. A spring, n, fixed Ien the undei` side of the plate A, has u lug, o, which fits around the odge of the plate D, aud which, when it is pressed down, binds the said plate so that it will not`move. `When the end of the'spring F arrives oppositeto 100'in A, it comes againstithe bevelled or rounded lug o, which is also arranged opposite to that figure, and is raised hy the same, so that it willlpress it upon the bevelled edge of the plate D, and so that the pin e slifted out of the hole a: in the plate D. When, then, the pointer is moved, it will only carry the plate E along until the spring F has passed over' the lug o, and dropped into the next hole, a. Thus the plate E was moved one figure, while D rernained stationary, and the pin m has thus arrived opposite to another ligure in the plate E. -That figure on E near'whieh the pin m stands denotes the hundreds that have been counted, while that figure on E, which is opposite to lOOonA, denotes the tens and units. The disk I, which is moved one tooth during each move of the pointer, is provided with figures on its face, of which one is displayed through a. slot or hole in a stationary corering-plate, L. If this disklannot he made large enough to register the required number, a11other.plate,J,rnay be used, which would, for instance,

register the hundreds, or thirties, or tties, according to the number of teeth on I. One of. the notchesA in the' latter is deeper than the rest, and allows the pawl to he'hrought into the teeth in J, thereby moving the said plate J one tooth during eaeh complete revolution of the plate I.

K It will 'oe seen that this machine registersaltogether automatically, and thatit requires only caro t'o insert thepin k into the right hole, d, and to 'then brinrr the pointer as far around until tl l Wec'laim as neu', and desire to secure by Letters Patent l. Thetplates A., D, and E, when conneeted'by the pins b and e, respectively, and when operated by means .of the pointeriH, allmade substantially as herein shown und described.

The'nlaites A, D, and E, and pointer H, incomhination with the paivlj, plate G, and ratchet-disk I, (or

'fund 5,) all made'ond operating substantially as herein shown and describedi 3. The device'for-counting the hundreds, consisting of acombination ofthe spring F. with the lug ov -on spring '11 and with the disks A D E and pin m, all made and o'pera'ting'sulistantially as vherein shown and described. r v

v v JAMES A.LO0MIS,

ALONZO JOHNSON.

.Witnessesa HENRY S. HYDE, Geo. H. Famenne.

ie 4panil strikes the shoulder y 

